61995542 has 16 divisors (see below), whose sum is σ = 107735712. Its totient is φ = 26205120.

The previous prime is 61995503. The next prime is 61995547. The reversal of 61995542 is 24559916.

It is a self number, because there is not a number n which added to its sum of digits gives 61995542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61995547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29309 + ... + 31352.

It is an arithmetic number, because the mean of its divisors is an integer number (6733482).

Almost surely, 2^61995542 is an apocalyptic number.

61995542 is a deficient number, since it is larger than the sum of its proper divisors (45740170).

61995542 is a wasteful number, since it uses less digits than its factorization.

61995542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60743.

The product of its digits is 97200, while the sum is 41.

The square root of 61995542 is about 7873.7247856399. The cubic root of 61995542 is about 395.7796745682.

The spelling of 61995542 in words is "sixty-one million, nine hundred ninety-five thousand, five hundred forty-two".